Minimum wage: What Obama's proposal would mean

In Tuesday's State of the Union, President Barack Obama called for raising the minimum wage to $9 an hour, an idea that has seen little discussion in recent months. Here's what you need to know about the proposal:The minimum wage is currently $7.25 per hour.Congress last raised the minimum wage in 2007. The Senate voted 94-3 and the House 315-116 in favor of that bill, which increased the minimum wage in three steps, ending at $7.25 an hour as of …